Propeller for vessels



(No Model.) I Y 0. J. B. BOESELAGER.

PROPBLLER FOR VESSELS. n

N0.449,996. y PatentedApm, 1891.

UNITE-n STATI-isf PATENT Oraties.

O'l"`O JOSEPH BARONIOESELAGER, OF MOUN" ANGEL, OREGON.

PRoPELLi-:a FOR vEssELs.

SPECIFICATION forming part of Letters Patent No. 449,996, dated April 7, 1891. Appncaioniednay'za,1890. saturo. 353,513. (Numan.)

To all 10700721, it may concern:

Be it known that I, OTTO JOSEPH BARON BOESELAGER, a subject of the Emperor of Germany, residing at Mount AngeLlMarion county, and State of Oregon, have invented a new and useful Improvement in Propeller Vessels Employing Steam as a Motive Power, of which the following is aspeciication, reference being had to the accompanying drawings, forming a part thereof.

The object of myinvention is to substitute for the screw-propellers of vessels paddleslopcrated by suitable Ymechanism in such manner as to give them a movement similar to sculling or paddling, so that the vessel may receive its impulsion directly from the combined repulsive force exerted bythe water and the paddles against each other, thereby attaining greater power and speed, and, as will appear, the vessel is at the same time placed Linder more complete control for the purpose of stopping,turning, and reversing or backing. This object I accomplish in the manner illustrated in the accompanying drawings, in which- Figure l is a horizon tal Asect-ion through the keel-frame of a vesseljustabove the paddles and the mechanism which connects the paddles with the power-driven shafts, showing the relative arrangement of the alternate paddles and their connecting mechanism when the paddles are at the eXtreme limit of their movement in one direction. Fig. 2 is a side elevation of a portion of the keel-frame, a paddle, the vertical power-driven shafts, and the connections between the paddle and the said shafts. Fig. 3 is a horizontal section of a portion of the keel-frame, showing the paddle at the extreme limit of its movement in one direction, its position being reversed to that shown in Fig. l prior to the stroke in the opposite direction. Fig. 4 is a horizontal section of the vertical power-driven shafts taken above the connections with the motive power. Fig. 5 is a detail section showing the manner of connecting the arms with the power-driven shaft.

In the keel-frame K, located in the stern of the vessel, are supported the vertical shafts D E. The shafts D are provided at different relative levels with two horizontal arms B and B', between which are suspended about midway of their ends on pivots a the paddles A. Shaft-s D have also tw.o cross-arms II Il at different relative levels, working in an annular groove therein, as seen in Fig. 5;l and shafts E have two cross-arms I I corresponding in position with the cross-arms H I-l, rigidly secured theretoA The cross-arms I-I and I are connected at their ends by means of the links L L and the cross-arms II and I are connected at their ends by corresponding links L L.' The paddles are provided with cross-arms J and M on their opposite edges in line with the pivots a, which arms are connected with thc ends of the cross-arms II andV Il by means of the links C and C', respectively. The cross-arms J M H II I I are of equal length and the links O C and the arms I3 B are of equal length and arranged in parallel position.

The cross-arms and the links constitute the stopping or regulating mechanism governing the reciprocating motion or stroke of the paddles. From the sides of the shafts D E extend the lever-arms b c, respectively, which are connected by means of the links g fand rods F G with any suitable operating power or machinery not shown.

The movement of the paddles is shown in Fig. l, paddles A A being seen in their eX- treme point of outward stroke and paddles A A in their extreme pointof return-stroke. Supposing that the paddles A A are to be started on their return-stroke, the operating power is transmitted through the lever-arms b c and links L L C C to the cross-arms .I M on the paddles throwing the same'at the angle shown in Fig. 3, in which movement the operating power is largely aided by the repulsive force exerted by the water, as indicated by the arrow in Fig. 3. Having attained this position the paddles are ready to be started by the arms B B on their returnstroke, the links C O L L and cross-arms H H I I retaining them in the acute angle which they have assumed until they have reached their extreme point of return-stroke and the same movements are accomplished by the paddles in the course of their sweep or stroke in the opposite direction. Y

As is obvious, powerful engines must be used to supply the motive power; and it is necessary that the alternate paddle movements A A and A A be coupled together and vessel forward, or, by reversing' this movement, converting the same into a repelling force urging' the vessel backward. By stopping one or more of the paddles at their extremel outer or inner point of stroke the saine will be converted into a rudder, enabling the Vessel to be steered thereby or turned about in a very short space, and stopping` two paddles at their extreme inner point ot' stroke and the remaining two paddles at their eX- treme outer point of stroke will canse the vessel to be stoppedalmost instantly.

Having thus described my invention, what I claim, and desire to secure by Letters Pat ent, is'- rlhe hereinbeforeidescribed mechanism for propelling, steering, an d stoi'll'iing,` Vessels, consistingof the vertical shaft B, having the arms B and B rigidly connected therewith, the paddle pivot-ed between the arms B and B', the Cross-arms J and M rigidly connected with the paddle in line with its pivotal connection with the arms B and B, the cross-arms H and H loosely mounted on shaft D, the links C -and C connecting the ends of the cross-arms l-I and ll with the ends of the cross-arms J and M, and means for independently operating shaft D and the cross-arms H and H', substantially as set forth, forthe purpose described.

OTTO JOSEPH BARON BOESELAGER.

Vitnesses:

DAVID BACK, O. BOURRET. 

